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067-1011-00 DSG
Adjustment
After cleaning or repairs, do the performance check a& described
in Section 4 of this manual.
If all functions are within
specification, no adjustment is needed.
If one or more of the
specifications are not met, calibrate the instrument as directed
in Section 4.
TROUBLESHOOTING AIDS
Theory of Operation
Section
3
of this manual explains circuit operation in detail.
It is a troubleshooting aid when used in conjunction with the
circuit diagrams.
Diagrams
A block diagram and detailed circuit diagrams are located on
foldout pages in the Diagram section.
The circuit diagrams show
the component values and assigned circuit reference numbers of
each component.
The first page of the Diagram section defines
the circuit symbols and reference designators used in the manual.
Important waveforms and voltages are shown within the diagrams.
Circuit Board Illustrations
To identify electrical components when troubleshooting, turn to
the Parts Location illustration that is located on the back of
a foldout page at the left of the related circuit diagrams.
Component values, descriptions, and ordering data are given in
the Replaceable Electrical Parts list.
Component and Wiring Color Codes
Color stripes or dots on electrical components signify electrical
values, tolerances, etc., according to EIA standards. Components
not color coded usually have information printed on the body.
Some wiring coding follows the same EIA standards.
Testing Equipment
Refer to Section 4 for a list of equipment required for Performance
Check and Adjustment.
5-2
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